leds: pca955x: use devm_led_classdev_register

This lets us remove the loop doing the cleanup in case of failure and
also the remove handler of the i2c_driver.
Signed-off-by: Cédric Le Goater <clg@kaod.org>
Acked-by: Pavel Machek <pavel@ucw.cz>
Signed-off-by: Jacek Anaszewski <jacek.anaszewski@gmail.com>

drivers/leds/leds-pca955x.c

@@ -410,10 +410,10 @@ static int pca955x_probe(struct i2c_client *client,
 		pca955x_led->led_cdev.name = pca955x_led->name;
 		pca955x_led->led_cdev.brightness_set_blocking = pca955x_led_set;
 
-		err = led_classdev_register(&client->dev,
-					&pca955x_led->led_cdev);
-		if (err < 0)
-			goto exit;
+		err = devm_led_classdev_register(&client->dev,
+						 &pca955x_led->led_cdev);
+		if (err)
+			return err;
 	}
 
 	/* Turn off LEDs */
@@ -431,23 +431,6 @@ static int pca955x_probe(struct i2c_client *client,
 	pca955x_write_psc(client, 1, 0);
 
 	return 0;
-
-exit:
-	while (i--)
-		led_classdev_unregister(&pca955x->leds[i].led_cdev);
-
-	return err;
-}
-
-static int pca955x_remove(struct i2c_client *client)
-{
-	struct pca955x *pca955x = i2c_get_clientdata(client);
-	int i;
-
-	for (i = 0; i < pca955x->chipdef->bits; i++)
-		led_classdev_unregister(&pca955x->leds[i].led_cdev);
-
-	return 0;
 }
 
 static struct i2c_driver pca955x_driver = {
@@ -457,7 +440,6 @@ static struct i2c_driver pca955x_driver = {
 		.of_match_table = of_match_ptr(of_pca955x_match),
 	},
 	.probe	= pca955x_probe,
-	.remove	= pca955x_remove,
 	.id_table = pca955x_id,
 };